
An uncoated folding boxboard for natural luxury
MetsäBoard Natural FBB is an uncoated folding boxboard for natural luxury. It reflects today’s high-end packaging trends with its natural look and feel with a sense of authenticity. MetsäBoard Natural FBB is a rigid board with an aesthetic appearance. This OBA-free paperboard is approved for direct food contact globally.
MetsäBoard Natural FBB is available in a basis weight range of 175–325 g/m² (12.2–24.0 PT). It’s suitable for offset and flexo printing.
PRINTING METHODS
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Offset
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Flexo
CERTIFICATES

FEATURES
- Bleached chemical pulp
- Bleached chemi-thermo-mechanical pulp (BCTMP)
- Bleached chemical pulp
RECOMMENDED FOR:
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Food*, suitable for frozen and chilled food, folding trays, paper plates and fast food applications
*Suitable for food contact as specified in Mill declaration; contact ProntoPack for details of restrictions and/or limitations.
Country specific limitations may be applied.
Country specific limitations may be applied.
Property | Unit | Method | Tolerance | Values | Standard | ||||||||||
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Grammage | gr/m^2 | ± 2% | 175 | 190 | 200 | 210 | 225 | 235 | 245 | 260 | 270 | 295 | 325 | ISO 536 | |
Bending stiffness CD | mNm | Taber 15" | ± 15% | 4.0 | 4.8 | 5.7 | 6.8 | 8.3 | 9.2 | 10.2 | 11.8 | 13.2 | 16.2 | 19.2 | ISO 2493 |
Bending stiffness MD | mNm | Taber 15" | ± 15% | 8.0 | 9.9 | 11.3 | 13.7 | 16.7 | 18.6 | 20.4 | 23.5 | 26.5 | 32.7 | 38.2 | ISO 2493 |
Thickness | µm | ± 3% | 310 | 335 | 360 | 385 | 415 | 435 | 455 | 485 | 505 | 555 | 610 | ISO 534 | |
Moisture content | % | ± 1.0 | 7.0 | 7.0 | 7.0 | 7.2 | 7.5 | 7.7 | 7.7 | 7.8 | 8.1 | 8.3 | 8.5 | ISO 287 | |
Brightness | % | C/2° | ± 1 | 80.5 | 80.5 | 80.5 | 80.5 | 80.5 | 80.5 | 80.5 | 80.5 | 80.5 | 80.5 | 80.5 | ISO 2470-1 |
Water absorption top - edge | gr/m^2 | Cobb.3 min | ≤40 | ≤40 | ≤40 | ≤40 | ≤40 | ≤40 | ≤40 | ≤40 | ≤40 | ≤40 | ≤40 | ISO 535 | |
Water absorption back | gr/m^2 | Cobb.3 min | ≤50 | ≤50 | ≤50 | ≤50 | ≤50 | ≤50 | ≤50 | ≤50 | ≤50 | ≤50 | ≤50 | ISO 535 | |
Robinson test | 12 months stored under normal conditions | <1 | <1 | <1 | <1 | <1 | <1 | <1 | <1 | <1 | <1 | <1 | EN1230-2 |